CN203333685U - Small sleeve of smelting blast furnace - Google Patents
Small sleeve of smelting blast furnace Download PDFInfo
- Publication number
- CN203333685U CN203333685U CN201320402315XU CN201320402315U CN203333685U CN 203333685 U CN203333685 U CN 203333685U CN 201320402315X U CN201320402315X U CN 201320402315XU CN 201320402315 U CN201320402315 U CN 201320402315U CN 203333685 U CN203333685 U CN 203333685U
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- China
- Prior art keywords
- blast furnace
- air port
- furnace
- cover
- small sleeve
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a small sleeve of a smelting blast furnace. The small sleeve is provided with a tuyere which is inclined, wherein the inclined tuyere inclines downwards from outside to inside in the radial direction of the blast furnace. The small sleeve of the smelting blast furnace can make up deviation caused by deformation of a large sleeve, gas on the circumference of the blast furnace is evenly distributed, and on the condition that when raw materials become poor suddenly, especially when the intensity of coke becomes poor, the materials collapse continuously and accumulation of a hearth happens, the hearth is activated.
Description
Technical field
The utility model relates to a kind of blast-furnace tuyere, relates to specifically the air port in a kind of steelmaking furnace.
Background technology
The air port of blast furnace by large cover, in cover, little cover form, little cover is set in middle cover, middle cover is set in large cover, as shown in Figure 1, 2, under normal circumstances, the medullary ray of little cover 01 uptake 02 is level, guarantees that the hot blast that enters blast furnace forms rational zone of combustion, guarantees to smelt to carry out smoothly.But after producing for some time, the refractory materials of blast furnace bottom is subject to the harmful element erosion and expands, and makes to overlap greatly the off-design position, and the medullary ray of little cover uptake departs from level attitude, causes blast furnace circumference gas flow distribution inhomogeneous, and local Gas Flow is unstable; There is the unsettled situation of crude fuel quality in actual production, when the unexpected variation of crude fuel, especially during the coke strenth variation, cause the material that collapses continuously, cause hearth accumulation, gas utilization rate variation, coke ratio are raise, thereby pig iron cost is improved.
The utility model content
The purpose of this utility model is to provide the little cover of a kind of steelmaking furnace, it can make up the deviation that large cover distortion brings, and blast furnace circumference coal gas is uniformly distributed, and in the unexpected variation of crude fuel especially coke strenth variation, cause in the situation of collapse continuously material, hearth accumulation, enliven cupola well.
To achieve these goals, technical solution of the present utility model is: the little cover of a kind of steelmaking furnace, and little putting is provided with air port, and described air port is the skew wind mouth, and described skew wind opening's edge blast furnace is radially from downward-sloping inwards outward.
The little cover of the utility model steelmaking furnace, wherein, the angle α of the medullary ray in described air port and blast furnace cross section is 0 °-7 °.
The little cover of the utility model steelmaking furnace, wherein, described little cover is the eccentric circle cone table, the medullary ray in described air port overlaps with the medullary ray of eccentric circle cone table.
After adopting such scheme, the little cover of the utility model steelmaking furnace is because the little air port put is the skew wind mouth, therefore can make up large cover upwarps the air-supply deviation caused, make blast furnace in the situation that large cover distortion coal gas keeps being uniformly distributed, and because air port radially tilts outside oneself inwards along blast furnace, therefore can promote the obnoxious flavour produced in smelting process to discharge out of the furnace, enliven the cupola well of bottom house.
In addition, because little cover is the eccentric circle cone table, the medullary ray in air port overlaps with the medullary ray of eccentric circle cone table, therefore makes the intensity of little cover improve.
The accompanying drawing explanation
Fig. 1 is the front view of the existing little cover of steelmaking furnace;
Fig. 2 is the left view of the existing little cover of steelmaking furnace;
Fig. 3 is the front view of the little cover of the utility model steelmaking furnace;
Fig. 4 is the left view of the little cover of the utility model steelmaking furnace;
Fig. 5 is the relative position schematic diagram of the little cover of the utility model steelmaking furnace and steelmaking furnace.
Embodiment
As shown in Fig. 3,4,5, the little cover of the utility model steelmaking furnace, be located on the circumference of steelmaking furnace 03, little cover is inclination eccentric circle cone table, which is provided with 11， air port, air port 11 for the skew wind mouth, its vergence direction along steelmaking furnace 03 radially from outside downward inwards, the angle α of the medullary ray in air port 11 and blast furnace cross section is 0 °-7 °, and the medullary ray in air port 11 overlaps with the medullary ray of eccentric circle cone table.
The above embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that the common engineering technical personnel in this area make the technical solution of the utility model, all should fall in the definite protection domain of claims of the present utility model.
Claims (3)
1. the little cover of steelmaking furnace, little putting is provided with air port (11), it is characterized in that: described air port (11) are the skew wind mouth, described skew wind opening's edge blast furnace is radially from downward-sloping inwards outward.
2. the little cover of steelmaking furnace as claimed in claim 1, it is characterized in that: the medullary ray of described air port (11) and the angle α of blast furnace cross section are 0 °-7 °.
3. the little cover of steelmaking furnace as claimed in claim 2, it is characterized in that: described little cover is the eccentric circle cone table, the medullary ray of described air port (11) overlaps with the medullary ray of eccentric circle cone table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320402315XU CN203333685U (en) | 2013-07-05 | 2013-07-05 | Small sleeve of smelting blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320402315XU CN203333685U (en) | 2013-07-05 | 2013-07-05 | Small sleeve of smelting blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203333685U true CN203333685U (en) | 2013-12-11 |
Family
ID=49702371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320402315XU Expired - Lifetime CN203333685U (en) | 2013-07-05 | 2013-07-05 | Small sleeve of smelting blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203333685U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111139326A (en) * | 2020-02-14 | 2020-05-12 | 山东钢铁股份有限公司 | Blast furnace |
| CN112877487A (en) * | 2021-01-27 | 2021-06-01 | 新疆八钢南疆钢铁拜城有限公司 | Device for rapidly treating and preventing red coke collapse in air port small sleeve chamber cleaning |
-
2013
- 2013-07-05 CN CN201320402315XU patent/CN203333685U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111139326A (en) * | 2020-02-14 | 2020-05-12 | 山东钢铁股份有限公司 | Blast furnace |
| CN112877487A (en) * | 2021-01-27 | 2021-06-01 | 新疆八钢南疆钢铁拜城有限公司 | Device for rapidly treating and preventing red coke collapse in air port small sleeve chamber cleaning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |
|
| CX01 | Expiry of patent term |